How to merge Totals from different categories in a cross tab

Hi All,

A previous developer had created a cross tab report with the following fields: Location, Department, Year, Month and Count of Accounts as seen in the attached Image (Crosstab_1)

I need to be able to combine the totals from the respective Department into the corresponding Location and Department.

As an example, Data from Location = All Cities for Apr, May and Jun from Department = ABC Grocery, DEF Clothing and XYZ Kitchenware should be added to Location = Los Angeles and the respective departments.

Similarly, data from ABC restaurant, JKH Clothing and LMO Kitchenware from All- Cities needs to be added to Location = New York and the corresponding departments.

Any help is greatly appreciated.